kern/119361: [bge] bge(4) transmit performance problem

[Sepherosa Ziehau]

On Jan 15, 2008 12:07 AM, Laurent Frigault <lfrigault at agneau.org> wrote:
> On Fri, Jan 11, 2008 at 10:02:34PM +0800, Sepherosa Ziehau wrote:
> > On Jan 8, 2008 1:28 AM,  <remko at freebsd.org> wrote:
> > > Synopsis: [bge] bge(4) transmit performance problem
> > >
> > > Responsible-Changed-From-To: freebsd-bugs->freebsd-net
> > > Responsible-Changed-By: remko
> > > Responsible-Changed-When: Mon Jan 7 17:28:37 UTC 2008
> > > Responsible-Changed-Why:
> > > reassign to -net team
> > >
> > > http://www.freebsd.org/cgi/query-pr.cgi?pr=119361
> >
> > Have you tested polling(4)?  If polling could give you better TX
> > performance, you should consider raise:
> > in bge_attach()
> > sc->bge_tx_max_coal_bds = 10;
> > to 64 or more
>
> I tested with polling and did not see any changes for the transmit
> performance problem.
>
> I just re-test with polling AND bge_tx_max_coal_bds raised to 64 => no
> changes.

Please test following patch:
http://people.freebsd.org/~sephe/if_bge.c.6.diff

Best Regards,
sephe

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